Dutta, Arghya ; Bhattacharjee, Jayanta K. (2013) Lifshitz tricritical point and its relation to the FFLO superconducting state Physics Letters A, 377 (21-22). pp. 1402-1406. ISSN 0375-9601
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Official URL: http://doi.org/10.1016/j.physleta.2013.04.025
Related URL: http://dx.doi.org/10.1016/j.physleta.2013.04.025
Abstract
We study the phase diagram of spatially inhomogeneous Fulde–Ferrell–Larkin–Ovchinnikov (FFLO) superconducting state using the Ginzburg–Landau (GL) free energy, derived from the microscopic Hamiltonian of the system, and notice that it has a very clear Lifshitz tricritical point. We find the specific heat jumps abruptly near the first-order line in the emergent phase diagram which is very similar to the recent experimental observation in layered organic superconductor. Comparison with experimental data allows us to obtain quantitative relations between the parameters of phenomenological free energy. The region of the phase diagram where the specific heat jumps can be probed by doing a dynamical analysis of the free energy.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Superconductivity phase diagrams; Phenomenological theories (two-fluid, Ginzburg–Landau, etc.); Heat capacity |
| ID Code: | 133848 |
| Deposited On: | 30 Dec 2022 10:26 |
| Last Modified: | 30 Dec 2022 10:26 |
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